[AIP-104] Change OP vault boost allocation

### Summary [AIP-74-A](https://snapshot.org/#/alchemixstakers.eth/proposal/0x5cd88ef66adc6fbd32674696cb5d63b55b80cd3430ae5155eca0af7568e04922) decided how the OP grant that Alchemix received would be used for boosting the Alchemix vaults on the Optimism network. Some time has passed since then, and circumstances have evolved. Therefore, a different allocation of the OP grant is being proposed for the boost. ### Details The start of the OP boost program was delayed, as the core team had been...